Electronic Sugar Detector

A relatively compact electronic device is needed, which when the element is inserted into a liquid, will indicate via LED, sound, or other simple means, whether or not sugar is present in that liquid. I am small business person who would like to purchase the intellectual property rights for electronic schematics and other materials relating to a useful and easily applicable design for such a device. Other options: % level of presence; separate detection of splenda, saccharin, or aspartame. Could possibly also be a paper (chemical) detection method that changes colors, instead of electronics.